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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.44 [2006] >
IJPAP Vol.44(10) [October 2006] >
| Title: | Temperature dependence of dc conductivity in polyaniline-metal halide composites |
| Authors: | Jain, N
Patidar, D
Saxena, N S
Sharma, Kananbala |
| Keywords: | Polyaniline
Metal halide composites
dc Conductivity |
| Issue Date: | Oct-2006 |
| Publisher: | CSIR |
| IPC Code: | G01R |
| Abstract: | Polyaniline (PANI) and its metal halide composites of
trivalent metal ions of Ni and Co have been synthesized with various
compositions (0, 50, 100 M%) by chemical oxidative polymerization technique
with ammonium peroxydisulphate in aqueous hydrochloric acid medium. I-V characteristics
of these materials at room temperature as well as function of temperature
(313-393K) have been studied. The temperature and composition dependence of dc conductivity for these materials has
been investigated. The dependence of
conductivity on temperature is suggestive of the metallic nature of the
composites and shows positive temperature coefficient of resistance. The
variation of electrical conductivity in the composition shows the lowest
conductivity for Co-Ni (50-50) over the values obtained for Ni (100) and Co
(100) separately. This interesting result can be explained on the basis of
bonding of cobalt and nickel with polyaniline matrix during their
polymerization. |
| Page(s): | 767-770 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.44(10) [October 2006]
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